The CMT 822.316.11 Slot Cutter is a precision 3-flute carbide-tipped cutting tool designed for routing narrow grooves, spline channels, biscuit slots, and T-slot or H-slot joinery in a wide range of wood-based and composite materials. With a 1 7/8 in. cutting diameter and a slim 1/16 in. teeth thickness, this slot cutter delivers clean, consistent slot widths suited for panel joinery, cabinetry, and furniture assembly work. It mounts via an 8mm bore and is intended for use with a compatible slot cutter arbor, giving woodworkers and shop professionals a compact, interchangeable blade solution for handheld routers, router tables, and CNC routing machines.

Key Features

• 1 7/8 in. cutting diameter with 1/16 in. teeth thickness - produces a precise, narrow slot that fits standard spline stock and biscuit profiles without tearout or oversized grooves.
• 3-flute carbide-tipped (HW material) construction - three cutting edges distribute load evenly and extend blade life compared to fewer-flute designs, reducing how often the cutter needs to be replaced.
• 8mm bore diameter with right-hand rotation - mates directly with CMT 824 series arbors and other compatible 8mm arbors for quick blade changes and secure tool engagement during cuts.
• 12.7mm cutting depth - provides sufficient groove penetration for standard spline and biscuit joinery applications in panels up to the rated cutting depth, reducing the need for multiple passes.
• 0.043 in. plate thickness - the slim body profile keeps the cutter compact in tight joinery setups and minimizes material waste from the kerf.
• CMT Orange Shield non-stick coating - reduces pitch and resin buildup on the blade body, keeps operating temperatures lower, and protects against corrosion to extend tool life between cleanings.
• SinterHIP industrial chrome carbide - carbide processed via Hot Isostatic Pressing resists micro-fractures and material failure, delivering longer cutting life in demanding production environments.
• Tri-metal brazing (silver-copper-silver) - a layered brazing method bonds carbide tips more securely to the blade body, reducing weld failure risk when cutting harder hardwoods or composite materials.
• Anti-kickback design - controls cutting depth per pass to reduce the risk of sudden blade grab, improving operator safety during router table and handheld routing operations.

Why This Product

• The 1/16 in. slot width is one of the narrower standard groove sizes available, making this cutter the right choice when working with thin splines or when tight-fitting joinery is required for furniture and cabinet panel assembly.
• The arbor-mount design (8mm bore) allows the blade to be swapped independently without replacing the entire tool assembly, reducing ongoing tooling costs when only the cutter needs replacement.
• The combination of SinterHIP carbide and tri-metal brazing means the cutting edges hold up longer in production settings where the cutter is used repeatedly across solid hardwood, plywood, MDF, melamine, and laminate materials.
• The CMT Orange Shield non-stick coating actively reduces resin and pitch accumulation, which is especially valuable when grooving MDF, chipboard, and melamine-coated panels that are known to cause rapid pitch buildup on uncoated blades.

Specifications

• Manufacturer Part Number: 822.316.11
• Brand: CMT Orange Tools
• Diameter: 1 7/8 in.
• Bore Diameter: 8mm
• Cutting Depth: 12.7mm
• Teeth Thickness: 1/16 in.
• Plate Thickness: 0.043 in.
• Number of Teeth: 3
• Shank: 8mm
• Blade Material: HW (Carbide-Tipped)
• Rotation: Right-Hand (RH)
• Product Type: Slot Cutter

Approved Applications

• T-slot and H-slot cutting
• Biscuit slot cutting
• Spline groove routing
• Panel joinery
• Solid hardwood grooving
• Softwood slot routing
• Plywood and MDF slot cutting
• Chipboard and melamine panel joinery
• Laminate and plastic groove routing